A1 practical: Measuring g (card drop)
In this practical the acceleration due to gravity will be measured by dropping a strip of card through a photo gate. When the card of length L is dropped it accelerates downwards. The photo gate is used to measure the time taken for the card to mass through the gate, this means that it has travelled a distance L. If the acceleration is uniform then we can use the equation s = ut + ½at2 so L=½gt2 By varying L and...